Carton intended to contain a roll of a webshaped material and comprising a tearing device



United States Patent Inventor Appl. No.

Filed Patented Assignee Priority Bengt Goran Bjorklund Kavlinge, Sweden776,915

Nov. 19, I968 Dec. I5, I970 AB Akerlund & Rausing Lund, Sweden acorporation of Sweden Nov. 27, I967 Sweden CARTON INTENDED TO CONTAIN AROLL OF A WEB-SHAPED MATERIAL AND COMPRISING A TEARING DEVICE 5 Claims,3 Drawing Figs.

US. Cl.....

[5 I Int. Cl B26f 3/02 [50] Field ofSearch 225/39, 42, 48, 49, 50, 51,52; 2.29/5 IAS [56] References Cited UNITED STATES PATENTS RE25,876l0/I965 Buttery et al. 225/48 2,226,477 I2/I940 Moore 225/48X 3,096,9187/1963 Van Dyke et al. 225/48 Primary Examiner-Andrew R. JuhaszAssistant ExaminerLeon Gilden Attorney-Pierce, Scheffler & ParkerABSTRACT: A carton for web material is provided with a tear strip on oneside, one line of cuts for allowing the tear strip to be removed havinga configuration such that a serrated cutting edge remains for use intearing off portions of the web material.

PATENTEU DEC] 5 I976 SHEET 1 [IF 3 PATENTED 0501 51970 SHEET 2 OF 3CARTON INTENDED TO CONTAIN A ROLL OF A WEB- SHAPED MATERIAL ANDCOMPRISING A TEARING DEVICE The present invention relates to a cartonintended to contain a roll of a web-shaped material from which piecesare meant to be torn off and comprising a number, preferably four, ofsidewalls parallel to the longitudinal direction of the roll, a jointpanel which is also longitudinal, and suitable end closing flaps.

The carton according to the invention is characterized in that the jointpanel comprises a tearable strip, one of whose edges is saw-toothed, sothat a portion of the joint panel which remains after the tearingoperation will obtain a corresponding serration and may be used fortearing off the said pieces of the web-shaped material.

The carton according to the invention has considerable advantages inrelation to previously knownconstructions of the same kind. Thus,noadditional means have to be attached to the device, which was previouslyusual, e.g. in the nature of steel blades or the like, in order topermit the said pieces of material to be torn off. Furthermore, in itsclosed state the carton has a completely smooth outer surface. Anadditional advantage is that the carton blank is of very simple shapeand easy to stamp out.

Additional advantages will be apparent from the following descriptionwith reference to the accompanying drawings showing a preferredembodiment of the subject matter of the invention.

F lG. 1 shows the blank for a carton'according to the inven- I tion.

FIG. 2 shows the completely closed carton.

FIG. 3 shows the carton open and with part ofa web-shaped materialprojecting from the carton.

As appears from FIG. 1, the blank comprises four sidewall panels 1, 2, 3and 4, a number of end closing flaps 5 to 14 and a joint panel, which isdivided into two partial panelslS and 17 by a tearing strip 16.

The partial panel 17 is meant to be glued or otherwise fixed to the wallpanel 1. The end closing flaps starting from the respective ends of thejoint panel to 17 are divided up into partial panels 11 and 12 and 13and 14, respectively, by means of slots 18 and 19, respectively, saidpartial panels being integral with the respective partial panels 15 and17, respectively. The two ends of the tearing strip 16 are defined byextensions 20 and 21 of the respective slots 18 and 19, At least theextension 21 is somewhat extended onto panel 14 proper, e.g. l or 2millimetres. Consequently, it is always easy to grip the said end of thetearing strip 16, when the carton is to be opened. The panel portions 11and 12 are connected by means of an unbroken portion 22, which is formedby the slot 18 not extending all the way to the outer margin of the endkit closing flap. in the same way, the panel portions 13 and 14 areconnected by means of an unbroken portion 23. The tearing strip 16 isformed by a number of W-shaped through punchings or line cuts 24 andessentially V-shaped punchings or line cuts 25. Between the W-shapedpunchings 24 there are formed unbroken portions 26. As is shown by FIG.3, these unbroken portions do not affect the tearing properties of thefuture tearing edge.-The rest of the unbroken portions 26 will as amatter of fact be located in every other tooth gap and on the torn-offstrip 16, respectively. Finally, reference numeral 27 designates theweb-shaped material from which pieces are meant to be torn.

The invention is not restricted to the embodiment described above butmay be varied within the scope of the following claims. Thus, the endclosures of the carton may be embodied in many different ways within thescope of the invention.

lclaim:

.1. A carton for dispensing a roll of web-shaped material comprising apair of longitudinal sidewalls, a top wall and a bottom wall, two ofsaid walls being outer walls, end flaps therefor to form a closed cartonfor the web, a longitudinal joint panel wall longitudinally contiguouswith one of said outer walls and overlapping the other of said outerwalls, said oint panel wall incorporating as an integral part thereof alongitudinally extending portion forming a tear strip, one side of saidtear strip having a serrated configuration thereby to develop a serratedcutting edge when said tear strip is removed for tearing off portions ofsaid web.

' 2. A carton as claimed in claim 1, wherein the joint panel wall isprovided with end flaps, each flap being provided with a transverse slotextending from the adjacent end of the tear strip to a point near theouter margin of said flap and the inner end of at least one slotextending transversely of the longitudinal axis of said tear strip ashort distance inside the inner end of said flap whereby when the cartonis erected said tear strip will extend a short distance beyond the edgeof said erected carton to facilitate gripping of said tear strip.

3. A carton as claimed in claim 1, wherein the serrated configuration ofthe tear strip comprises a series of spaced W- shaped line cutsconnected by spaced uncut portions of the joint panel which are severedwhen the tear strip is removed.

4. A carton as claimed in claim 3, wherein the uncut portions betweenthe series of spaced W-shaped line cuts are disposed in the gaps betweenthe teeth of the serrated cutting edge when the tear strip is removed.

5. A carton as claimed in claim 2, wherein the transverse slot extendingto a point near the outer margin of each flap of the joint panel walldivides each flap into'substantially two portions with sufficient flapmaterial at the outer end thereof to connect the two portions together.

